What was found
WHILE ON GROUND IN ONTARIO, MAINTENANCE FOUND BATTERY WOULD LIGHT EMERGENCY LIGHT FOR A FEW SECONDS THEN LIGHTS WOULD GO DEAD. REPLACED BATTERY PACK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE ON GROUND IN ONTARIO, MAINTENANCE FOUND BATTERY WOULD LIGHT EMERGENCY LIGHT FOR A FEW SECONDS THEN LIGHTS WOULD GO DEAD. REPLACED BATTERY PACK.